fedeler



(No Model.) 2 Sheets-Sheet l.

J, H. FBDBLER.

STEAM MOTOR.

No. 432,391. Patented July l5, 1890.

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A TTOHNE YS (No Model.) 2 sheets-sheet 2.

J. 1-1. FBDELER.

STEAM MOTOR.

No. 432,391. Patented Jly 15, 1890.

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A TTOHNE YS tu: Non: s paens en., wam-L uA c.

UNITED STATES VPATENT OFFICE.

JOHN H. FEDELER, OF NEY YORK, N. Y.

STEAM-MOTO R.

SPECIFICATION forming part of LettersV Patent N0. 432,391, dated July 15, 1890.

Application filed November 12, 1889. Serial No. 329,979. (No model.)

To a/ZZ whom, it may concern.:

Be it known that I, JOHN HENRY FEDELER, a subject of the King of Sweden, at present residing in the city, county, andV State of New York, have invented a new and Improved Steam-Motor, of which the following is a full, clear, and exact description.

My invention relates to that class of rotary engines in which the piston proper is inclosed in a stationary case and is propelled by steam, hot air, or other fluid admitted within the case. The engine embodying my invention may be propelled by hot air or other fluid; but it is especially adapted to be operated by steam.

The object of my invention is to provide a rotary engine in which direct steam shall be applied to two or more parts of the periphery of the piston at the same time, thus produc--` ing great power, and in which the expansive .force of the steam shall be almost wholly utilized before passing out through the exhaustpipes,thus making an economical engine.

To this end my invention consists in certain features of construction and combinations of parts hereinafter described, and more specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the views.

Figure l is a side elevation of the entire engine with the steam chest and valve for regulating the steam and `exhaust in section on the line l l of Fig. 2; Fig. 2, a vertical cross-section on the line 2 2 of Fig. l; Fig. 3, a vertical longitudinal section on the line 3 of Fig. 2; Fig. 4, a perspective view of the valve controlling the direct and exhaust steam and Fig. 5, a section of the valve and casing inclosing it on the line l l of Fig. 2, seen from the interior of the case.

The casing A, which constitutes the frame of the engine, is provided with a suitable base, upon which it rests, and is made in two parts, each of'which is provided with a flange a, so that the two parts maybe securely fastened together by bolts b, passing through the two flanges. At the top and on each side of the casin g A and arranged at equal distances around it are the chambers L L' L2 and M, 5o

`M', and M2, which open into the circular interior of the casing, and the object of which will be hereinafter explained.

Inclosed within the casingA is the body of the motor, which consists of the piston B, hav- 5 5 ing two wings D D', and which is keyed to the shaft O. The shaft O extends through the case A and piston B. One end of the shaft has a bearing in the case A and is provided with a fly-wheel P. The other end extends 6o through the steam-chest E and has a bearing in the box r and gland S. The box fr is screwed into the side of the steam-chest E, is provided with packing to prevent the steam from escaping around the shaft, and the packing is held in place by the gland S, which fits closely around the shaft and wedges into the box r, to which it is attached by the bolts t. The piston B is provided with wings- D D', which are placed upon opposite sides of the 7o circumference of the piston, and against which the steam acts to revolve the piston. The sides of the piston B should form practically a steam-tight joint with the sides of the casing A, and the wings D D' of the piston 75 should lit steam-tight in the casing, so that the Whole force of the steam will be directed against the wings of the piston.

`Attached to one side of the main casing A and surrounding the shaft O is a circular 8o steam-chest E, which is suitably packed to prevent Jthe steam from escaping around the shaft O, and in which revolves the valve F, which is attached to the shaft C. The steamchest E is made in two parts that it may be easily cast, and each'part is provided with ears u, through which pass bolts u, which hold the parts together. The supply steam-pipe H connects with the upper side of the steamchest F. vnear the shaft O, and the main ex- 9o haust-pipe I connects with the lower side of the steam-chest. Radiating from the steamchest E are the direct-steam pipes J, J', and J 2 and the exhaust-pipes K, K', and K2. Thesepipes extend from the steam-chest E along the outside of the casing A and project through it near its circumference, the directsteam pipes J, J', and J 2 entering the chambers L, L', and L2, and the exhaust-pipes K,

K', and I2 entering the chambers M, hf', and

M2, respectively. The outer part of the steamehest is provided on its inner face with a series of short grooves Z, extending inward from the steam-pipes J, and J2, and with a series of longer grooves in., extending from the exhaust-pipes K, K', and K2, and also with a series of disconnected segmental grooves n, one of which connects with the exhaustpipe I.

Vithin the steam-chest E and keyed to the shaft C is the rotary valve F, which is provided with two diametrically-opposite radial wings F', extending each at the periphery over one-third of the circumference of the ste`ain-cl1est,the spaces F2 between the wings being respectively one-sixth of said circumference. The valve is provided near the shaft C with two ports d d', through which passes the steam from the pipe Il, and which connect with passages e e', running through t-he two wings of the valve and terminating in oblong openings g g on the edge of the valve. These openings are made of a length nearly half that of the edge of each wing, so as to supply steam tothe wings D D' during about one-sixth of a revolution of the piston at one time. The valve F is also provided with recesses l. 71.' upon each wing, adapted to eonneet with the grooves m. The series of short grooves Z connect the direct-steam pipes J, J', and J2 with the openings g g' of the valve F. The series of longer grooves nlr provide for the connection of the exhaust-pipes K, K', and K2 with the recesses 7L 7L' of the valve F bcfore the spaces F2 connect with said exhaustpipes, andthe recesses 7L 71.' connect at the proper time the segmental grooves n, so that the exhaust can pass to the pipe I. rlhe valve should be practically steam-tight in the steamchest E, so that direct and exhaust steam will have to pass through the grooves and openings of the valve, as described.

Between the chambers L and M, L' and M', and L2 and M2are movable abutments N, N', and N2, which are pivoted to projections on the inside of the casing A at the points l, 2, and 3, respectively, and are adapted to direct the steam against the wings D D' of the piston. The abutments are backed by a spiral spring o to prevent them from sticking and are operated as hereinafter described. The abutment-s and the spaces therebetween are respcctively one-sixth of the circumference of the cylinder.

The direct-steam pipes J, and J 2 never carry exhaust-steam; but the exhaust-pipes K, K', and K2 alternately carry direct steam to operate the abutment-s N, N', and N2.

The engine is operated as follows: The steam entering from the main pipe l I passes into the steam-chest E and through the ports d d', passages c c', and openings q g' of the valve F into the steam-pipes J J J2. As a `wing D' in the drawings. `has passed the abutment N2 the steam bematter of fact, the steam will enter two steampipes at the same time and exert its force simultaneously upon both wings D D' of the piston; but to more easily follow it let us suppose the steam enters the pipe J. It will enter the easing A at the top of the ehamber L', as shown in Fig. rlhe abutment N' will thus be forced down till its lower edge strikes the body ofthe piston B and itsback rests against the solid part of the easing A, to which it is pivoted. As the abutment can be tipped no farther, the expansive force of the steam is 'exerted against the win D of the piston B, foi-ein it around to a position indicated by the dotted lines in Fig. 3, near the chamber M2. At this point the valve F will have moved so that `steam is eut off from the pipe J' and live steam can pass by the groove on, to the exhaust-pipe K2 behind the abutment N2, and the steam, striking the end of thc abutment N2, will close the abutment, as indicated by the dotted lines in Fig. 3, and the continued expansion of the steam that entersthe cham.-

1ber L' will force the wing D of the piston `beyond the abutment N2.

rlhe valve F will by this time have moved suliciently to cnt `oit' the steam from the pipe K2 and to allow vthe direct steam to enter the pipe J2, thus opening the abutment N2 and forcing the wing I) around to the position occupi ed by the After the wing D hind the abutment will exhaust through the pipcK2, passin through said pipe andthrough one of the grooves nt of the stean'i-chest E to the recess 7L of the valve F and groove n of lthe steanrchest E, and thence through the.

main exhaust-pipe I to the air.

` lVhile the above-described action is taking place to operate the wing D of the piston the Vsame action will be taking place through the other steam and exhaust pipes to operate the `wing D' of the piston.

I'lavin(r thus described m Y invention what `I claim as new, and desire to secure by Letters Patent, is-

l.. A steam-motor consisting, essentially, of

va casing A, having the chambers L, L', and

L2 andM, M', and M2 arranged around its circumference, pipes J, J', and J2 and K, K',

and K2, communicating with said chambers,

i the abutments N, N', and N2, pivoted between said chambers, the piston B, having wings D D' fixed to the shaft C within said casin g, the steam chest E, affixed to the casing, said steam-chest having the grooves 1,711., and o1. in

`the side thereof, and the valve F, fixed to the shaft C, so as to revolve in the steam-chest, said valve having ports (Z d', passages e c', and recesses 7L 7L' to regulate the flow of steam to and from the steam-chest, substantially as i described.

In a rotary engine, the valve F, adapted to turn with the shaft C and provided with` ports d cl', passages c e', openings g g', and

IOO

" recesses h 7L', adapted to regulate the flow of ports d d', passages e e', and openings g g steam to and from the piston, substantially therein, substantially as described, and for as described. J[he purpose specified.

3. The combination, With the steam-chest JOHN H. FEDELER. 5 E, having steam and exhaust pipes radiating l Witnesses:

therefrom and provided with grooves Z, m', VARREN B. HUTCHINSON,

and fn, of the shaft C and valve F, having CfSEDGWICK. 

